Today | Weather | Saturday, September 19, 2026

Weather in Stockton, California

12:42 AM
Now
Night
64° F
Feels Like 64°
Precipitation 0 %
Wind 4 mph
Humidity 75 %
Today
Cloudy Weather
Day 91°
Night 57°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 6

Stockton Weather Forecast Updated

2 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 19, 2025)
Night

Day

88°

Night

63°

Wind

7 mph

Precipitation

2 %

Air Quality in Stockton

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.47 µg/m³
PM10 16.8 µg/m³
O3 0.037 ppm
NO2 3.3 ppb
SO2 0.3 ppb
CO 0.16 ppm
NH3 0.26 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.57.47 µg/m³
PM1016.8 µg/m³
O372.5 µg/m³
NO26.28 µg/m³
SO20.86 µg/m³
CO184.83 µg/m³
NH30.26 µg/m³
NO0 µg/m³